Johnny Burnette Trio-Train Kept A Rollin'

Guitar players will do anything for a laugh. Loosening a tube inside the amp to get a sound? What are the mechanics for that to happen?

Does he think, "it's all so pretty in there, let's fuck it up a little and see what happens!"

Or, "all plugged in solid, sounds solid. What does 'loose' sound like?"

Does he replace a tube while drunk, then wonder, "what the fuck is that noise?" And then discover the loose tube? Does he like the noise, and repeat it? Does it end up on a record?

Probably that last one.